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Valve assembly
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Patent number 4,737,080
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Issue date Apr 12, 1988
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Ball Valve Company
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Herbert B. Owsley
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Valve assembly with relief groove
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Patent number 4,350,179
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Issue date Sep 21, 1982
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Stuart E. Bunn
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Screw locking arrangement
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Patent number 4,105,058
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Issue date Aug 8, 1978
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Ball Valve Company, Inc.
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Stuart E. Bunn
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Compressor unloader assembly
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Patent number 4,043,710
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Issue date Aug 23, 1977
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Stuart E. Bunn
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...